Worth



(No Model.)

' S. H. LEAVENWORTH. SELF INKING HAND STAMP.

No. 527,208. Patented Oct. 9, 1894..

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SETH HOWARD LEAVEN WORTH, OF CINCINNATI, OHIO, ASSIGNOR TO WILL PATENT OFFICE.

T. ORESSLER, OF SAME PLACE.

SELF-INKING HAND-STAMP.

SPECIFICATION forming part of Letters Patent No. 527,208, dated October 9, 1894:.

Application filed December 26, 1893- Serial No. 494,811- (No model.)

To all whom it may concern:

Beit known that I, SETH HOWARD LEAVEN- WORTH, a citizen of the United States, residing at Cincinnati, county of Hamilton, State of Ohio, have invented certain new and useful Improvements in Self-Inking Hand-Stamps, of which the following is a specification.

My invention relates to that class of self inking hand stamps in which the plate holding the die is made to rotate back and forth from the ink pad to the object upon which the die is to be impressed.

The object of the invention is to providea simple stamp of this kind, in which the reciprocating die is brought firmly and truly upon the object to be impressed, and returned in a perpendicular position against the inking pad in order that a cleanimpression may be made and the edges of the letters or ornaments not scrape along the inking pad when it is returned against it. These objects I attain by the meansillustrated in the accompanying drawings, in which Figure 1 is a perspective view of my improved stamp in its normal position. Fig. 2 is a perspective View of the same with the plate carrying the stamping die rotated to nearly the position it occupies when a further pressure upon the handle brings it down upon the object to be impressed. Fig. 3 is a detailed perspective view of the yoke carrying the stamp die in the position it occupies when impressed upon the object to be printed, showing in dotted line upon the right hand side the shape of the slot in the arm which turns the die to the printing position. Fig. 4 is a detailed view in perspective illustrating the position the die assumes when elevated against the inking pad, the dotted line at the right hand side showing the position the parts assume when the die carrier is turned upward against the pad. Fig. 5 is a perspective view of the lower supporting frame or standard.

Referring to the parts, which are indicated by similar reference letters wherever they oc-' cur througho ut'the various views, G indicates thesupportingframe or standard. This frame is preferably made of a single piece of sheet metal firststamped out to the requisite shape. The outline of the legs or standards may be of any design to suit the taste or fancy of the constructer. The standard has projecting up from its center a tube, to receive a spiral spring which is compressed between the top plate of the standard and the top of the perforation in the hollow handle secured centrally to the top of the yoke, A, the object of the tube and spring being to return the yoke to the elevated position after pressure upon the handle is released. So far as this part of the device is concerned, it is similar to those in common use in self inking stamps and need not, therefore, be specifically described.

The top plate of the frame, G, is slotted at each end to pass the arms of the yoke, A, and the legs of the frame are slotted, shown, at F, the central portion of the slot being cam or V shaped for thepurpose' of turning the die carrying plate as will be hereinafter described.

The arms of the yoke, A, have substantially V shaped notches upon one side, as shown, at E, Figs. 3 and 4, the inner wall of the notch coming, when the plate is in either its elevated or depressed position, in the same vertical plane as the journals or studs, D, by which the die carrying plate, 0, is journaled in the lower endsof the yoke arms.

The die plate, O, which is preferably struck up from sheet metal, having its edges turned at a right angle to strengthen it, has u pturned legs at each end, through which the journal pins, D, pass andby which the plate is journaled in the lower ends of the yoke, A. The diminished ends of these legs are also perforated and receive a rod which passes through the ends of the lugs, the rods being permanently secured to the lugs. extended ends of the rod, B, pass through the slots, F, in the legs of the standard, G. These legs are braced apart and held in the proper position at their lower ends by rods upon each side, which extend from one end to the other and are riveted or otherwise secured in said legs. Upon the top of the standard, G, surrounding the slots in the end upon three sides, are shown reinforcing plates to give a firm bearing for the arms of the yoke, A, but these are not essential and may be dispensed with if desired.

The inking pad is secured underneath the top of the standard, as shown in Fig. 2, in the The usual manner, and the stamp secured to the face of the plate, 0, as also shown in Fig. 2.

The operation of the device is as follows: The parts being in the position indicated in Fig. 1, pressure upon the handle to bring the yoke downward,t'orces the rod, B, to traverse the slot, F, in the legs of the standard, and

the ends of said rod passing through the Vv D, thus holding the plate,-(l, firmly in the horizontal position so that a further pressure upon the knob will bring it down truly upon the object to be impressed with the stamp, as clearly seen in Fig. 3. Upon releasing the handle, the spiral spring will throw the yoke upward, carrying the plate, 0, with it. The ends of the rod, B, traverse the cam portion of the groove, F, in the legs, reverses the plate and turns its face upward parallel to the inking pad, the ends of the rod and the journal pins again being in the perpendicular position. The ends of the rods and the slotsin the ends. of the upper plate insure the stamp to turn truly against the inking pad. It will thus be seen that any vibration of the die carrying plate, 0, is absolutely prevented after the ends of the rods have passed either above or below the V shaped slot in the legs of the standard.

While I have shown the standard and yoke formed of single pieces of sheet metal formed the desired shape and which, for economy, I believe to be the cheapest mode of constructing them, I do not limit myself to this specific construction, as it is obvious that in very heavy stamps the parts may be formed of cast metal and secured together in any well known manner. The device may also be varied in other details of construction without departing from the spirit or scope of my invention and hence, without limiting myself to the precise details-of construction shown,

What I claim, and desire to secure by Letters Patent, is

1. In a self inking stamp, the combination of the standard, slotted near its ends on top to guide the stamp carrying yoke, and having its legs vertically slotted at their upper and lower ends, said slots being V or cam shaped intermediate the ends, the tubular extension projecting from the center of said standard, the yoke centrally provided with a hollow handle, the spring seated in the upward tubularextension of the standard and entering said handle, the arms of said yoke being adapted toslide through the slots in the top of the standard along the inside walls of the standard legs and notched at E, the stamp plate journaled in. the lower ends. of said arms and having lugs extending beyond the journals, a rod securedi'n the extended ends of said lugs and passing through the slots in the legs of the standard to traverse the slots in said legs, the inking pad underneath the standard top, and the stamp secured to the face of the plate, 0, substantially as shown and described.

2. The combination, substantially as hereinbefore set forth, of the standard having its top plate slotted near the end, and its legs vertically slotted at their upper and lower ends, said slots being V or cam shaped intermediate the ends, a spring pressed yoke adapted to slide in said slots in proximity to the inner walls of the standard legs and having its lower ends notched at E, a stamp'plate journaled in the lower ends of said arms, the rod, B, secured in the lugs of said plate and having its extended ends projecting through the slots in the legs, said rod when seated against the bottom of the notch in saidyoke being vertically above the pins by which the plate is journaledto the yoke, whereby the plate and yoke are locked rigidly together while said pin is traversing the vertical portion of the slot in the standard.

SETH HOWARD LEAVENWOR-TH.

Witnesses:

S. (into, J r., WILL T. OREssLER. 

